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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">vestich</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия химических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Chemical Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8331</issn><issn pub-type="epub">2524-2342</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vestich-113</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ФИЗИЧЕСКАЯ ХИМИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICAL CHEMISTRY</subject></subj-group></article-categories><title-group><article-title>Синтез перовскитоподобных оксидов в системе Sr-Ni-Ta-O</article-title><trans-title-group xml:lang="en"><trans-title>Synthesis of perovskyte-typeoxides in Sr-Ni-Ta-O system</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кравченко</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Kravchenko</surname><given-names>E. S.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Махнач</surname><given-names>Л. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Makhnach</surname><given-names>L. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бассат</surname><given-names>Ж. -М.</given-names></name><name name-style="western" xml:lang="en"><surname>Bassat</surname><given-names>J. -M.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Усенко</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Usenka</surname><given-names>A. E.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Паньков</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pankov</surname><given-names>V. V.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Белорусский государственный университет</institution><country>Belarus</country></aff><aff xml:lang="ru" id="aff-2"><institution>Институт химии конденсированных материалов</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>08</day><month>06</month><year>2016</year></pub-date><volume>0</volume><issue>2</issue><fpage>30</fpage><lpage>32</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кравченко Е.С., Махнач Л.В., Бассат Ж.-., Усенко А.Е., Паньков В.В., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Кравченко Е.С., Махнач Л.В., Бассат Ж.-., Усенко А.Е., Паньков В.В.</copyright-holder><copyright-holder xml:lang="en">Kravchenko E.S., Makhnach L.V., Bassat J.-., Usenka A.E., Pankov V.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://vestichem.belnauka.by/jour/article/view/113">https://vestichem.belnauka.by/jour/article/view/113</self-uri><abstract><p>C использованием методов рентгенофазового, микрозондового рентгеновского анализов, сканирующей электронной микроскопии установлено влияние избыточного количества стронция на формирование однофазных никелатов в системе Sr3+zNiyTa2-yOx (3 ≤ 3 + z ≤ 4; 1 ≤ y ≤ 1,75). Установлено, что при концентрациистронция (3+ z ), стремящейся к 4, и концентрации никеля ( y ), стремящейся к 2, образуются однофазные продукты со структурным типом Sr3Ti2O7. Показано, что в области содержания Sr 3 ≤ 3 + z &lt; 4 и Ni 1 ≤ y &lt; 1,75 при температуре около 1300 °С происходит кристаллизация в основном двух фаз: Sr2(Ni,Ta)O4±δ и Sr3+z(Ni,Ta)2Ox со структурными типами K2NiF4 и Sr3Ti2O7 соответственно. Обнаружено, что в соединениях Sr2(Ni,Ta)O4±δ и Sr3+z(Ni,Ta)2Ox появляются фазы прорастания.</p></abstract><trans-abstract xml:lang="en"><p>The effect of strontium excess on formation of single-phase nickelates in Sr3+zNiyTa2-yOx (3 ≤ 3 + z ≤ 4; 1 ≤ y ≤ 1,75) system has been established by XRD and electron microprobe techniques. It has been found that single-phase products of Sr3Ti2O7 structural type were formed when strontium (3 + z ) and nickel ( y ) content is close to 4 and 2, respectively. Crystallization of two predominant phases, i. e. Sr2(Ni,Ta)O4±δ and Sr3+z(Ni,Ta)2Ox of K2NiF4 and Sr3Ti2O7 structural types, has been shown to occur with strontium content of 3 ≤ 3 + z &lt; 4 and nickel of 1 ≤ y &lt; 1,75, at 1300 °С. Intergrowth phases have been foundto appear for Sr2(Ni,Ta)O4±δ and Sr3+z(Ni,Ta)2Ox.</p></trans-abstract></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Aguadero A., Fawcett L., Taub S., Woolley R., Wu K.-T., Xu N., Kilner J. A., Skinner S. J. // J. Mater. Sci. 2012. Vol. 47. P. 3925-3948.</mixed-citation><mixed-citation xml:lang="en">Aguadero A., Fawcett L., Taub S., Woolley R., Wu K.-T., Xu N., Kilner J. A., Skinner S. J. // J. Mater. Sci. 2012. Vol. 47. P. 3925-3948.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Tsipis E. V., Kharton V. V. // J. Solid State Electrochem. 2011. Vol. 15. 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